Re: Thoroughput of link between MIC and PFE in Juniper MX80
[ Edited ]
You get 10g full duplex in/out per port. The diagram indicates channel of 20G bus unit (pfe <-> ix) that is queued when you have 4x Port 10-Gigabit Ethernet MIC with XFP.
In case of 2x Port 10-Gigabit Ethernet MIC with XFP = 20g per MIC (MIC-3D-2XGE-XFP which is MX80 supported)
You have 2x empty slots in MX80. (Max you get out of these two slots is 40G (20G per slot) by having MIC-3D-2XGE-XFP per slot) or 20G from 1xGE port and 4x10G build in model so its called MX80 (80G /160G)
In case of 4x Port 10-Gigabit Ethernet MIC with XFP = 40g per MIC (MIC-3D-4XGE-XFP which is "not" MX80 support, but is MX240,MX480,MX960 supported)